富川县位于桂东北,地处北纬24°37′21″～25°9′20″,东经111°5′21″～111°28′50″.县境西面为都庞岭,东面是萌渚岭山脉,地形如一窄长地带,自北向南倾斜,系北方冷空气入侵广西的隘口,素有大风走廊之称.寒露风是我县晚稻生产的自然灾害之一,严重时影响其抽穗扬花和灌浆.历年寒露风多出现于10月5日,早的年份出现于9月下旬末,1992年出现在10月3日～9日.为减轻寒露风对晚稻产量的影响,我们按广西植保 Fuchuan County is located northeast of Guangxi and is located at latitude 24 ° 37’21 “to 25 ° 9’20” and longitude 111 ° 5’21 “~ 111 ° 28’50” east. Mengzhu Ridge Mountains, terrain as a narrow strip, from north to south tilt, the northern cold air invades the pass of Guangxi, known as the windy corridor known .Deep dew is my county of late rice production of natural disasters, severe impact on heading Flowering and grouting.Over the years cold dew appeared in the October 5, the early years appeared in late September, 1992 appeared in the October 3 to 9. In order to reduce the impact of cold dew on the yield of late rice, according to Guangxi Plant protection